GSM/GPRS/3G/4G/NB-IoTSensor To Cloud IoT SeriesPage 17 of 37 King Pigeon Hi-Tech. Co., Ltd Ver 1.1 [DO Current Status]Click read to display DO current status. [Test][Switch OFF]: DO output open immediately after clicking.[Switch ON]: DO output close immediately after clicking.[Pulse Output]: DO pulse output after clicking.8.6.2. DIN - Digital Input Settings [Input Type] 0: Normal Close (NC): DIN is normally close, alarm when DIN is open. 1: Normal Open (NO): DIN is normally open, alarm when DIN is close. [Sampling period]Range 2-65535, unit 100ms (0.1 second), by default 2, indicating that the DIN state is collected every200 milliseconds (0.2 seconds). In low power mode, it is recommended to extend the sampling periodaccording to actual needs, which can reduce power consumption. [Alarm/Recovery Verify Time]Range 0-65535 seconds, default 2, which means that the DIN state changes 2 seconds before it isconfirmed as alarm or recovery, it can prevent misinformation; Setting to 0 indicates that the SMS will besent immediately when DIN changed. [Alarm SMS Content],[Recovery SMS Content]Up to 40 characters, the SMS content sent to the authorized number when DIN alarmed or returned tonormal. [Enable Recovery Inform]